Re: Coanda Jet in Color
- From: Dan <B2431B@xxxxxxx>
- Date: Fri, 31 Jul 2009 19:35:46 -0500
Steve Hix wrote:
In article <Vnzcm.46600$vp.27484@xxxxxxxxxxxx>, Dan <B2431B@xxxxxxx> wrote:
Rob wrote:On Jul 30, 11:39?am, LIBERATOR <nogeek...@xxxxxxxxxxxxx> wrote:From the line drawing it looks more like a ducted fan. Either way, it never flew. I wonder if anyone has since done the math to determine if it could.On Jul 29, 11:11?pm, Rob Arndt <teuton...@xxxxxxx> wrote:coanda effect?
Replica of Coanda's 1910 Turbine Aeroplane:
World's first designed jet aircraft- WHOA!!!
Apparently it would have flown, except that Coanda screwed up. He got distracted watching hot exhaust flow "sticking" to part of the (flammable) aircraft covering (Coanda Effect in action), and didn't see the hangar coming toward him.
Then he did, pulled up hard, stalled and crashed.
The craft probably had enough power for flight, and doesn't look as though it would have more controllability issues than usual for the time.
I doubt we'll ever know, unless someone builds and flies a good replica.
Coanda lost interest in his aircraft research and took to digging in to the fluid flow effects. Which eventually was a good thing for fans of automatic transmissions, several of which use Coanda effects in their operation.
I wonder if it really could have flown beyond a hop. We'll never know, but I think of the "Spruce Goose" when these discussions come up. That one never got out of ground effect and only flew a straight line. We'll never know if it could have flown out of ground effect and we'll never know if Coanda's machine could have flown even in ground effect.
One thing I notice from the line drawing is there doesn't seem to be sufficient airflow to cool the engine.
Dan, U.S. Air Force, retired
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